<template>
  <div>
    <el-form
      ref="deptForm"
      :model="form"
      :rules="formRules"
      label-width="120px"
    >
      <el-form-item label="部门名称" prop="name">
        <el-input
          v-model="form.name"
          style="width: 80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input
          v-model="form.code"
          style="width: 80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select
          v-model="form.manager"
          style="width: 80%"
          placeholder="请选择"
        >
          <el-option
            v-for="item in employees"
            :key="item.id"
            :value="item.username"
            :label="item.username"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input
          v-model="form.introduce"
          style="width: 80%"
          placeholder="1-300个字符"
          type="textarea"
          :rows="3"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
        <el-button size="small" @click="hCancel">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { getEmployeeSimple } from '@/api/employees'
import {
  addDepartments,
  getDepartDetail,
  updateDepartments
} from '@/api/departments.js'
import { call } from 'body-parser'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    const validCode = (rule, value, callback) => {
      const originCode = this.originList.map(item => item.code)
      console.log(originCode)
      // 添加时不能跟同级部门相同
      if (originCode.includes(value)) {
        callback(new Error('部门编码' + value + '已存在'))
      } else {
        callback()
      }
      // 编辑使用的非重校验规则
      if (this.isEdit) {
        const originCode = this.originList
          .filter(item => item.id !== this.id)
          .map(item => item.code)
        console.log('当前要校验的值', value, originCode)
        if (originCode.includes(value)) {
          callback(new Error(value + '已存在'))
        } else {
          callback()
        }
      }
    }
    const validName = (rule, value, callback) => {
      // 思路: 被占用的名字列表
      const originName = this.originList
        .filter(item => item.pid === this.id)
        .map(item => item.name)
      console.log(originName)
      // 如果添加部门的名字跟同级部门名字相同,提示重复
      if (originName.includes(value)) {
        callback(new Error('部门名称' + value + '已存在'))
      } else {
        callback()
      }

      // 编辑时
      if (this.isEdit) {
        // 找出当前被编辑的元素
        const dept = this.originList.find(item => item.id === this.id)
        console.log(dept)
        // 取出pid (找出他的父级) pid相同就是兄弟元素
        const pid = dept.pid
        // 过滤: 同一级父级,不包括自己;
        const originName = this.originList
          .filter(item => item.pid === pid && item.id !== this.id)
          .map(item => item.name)
        console.log(originName)
        if (originName.includes(value)) {
          console.log('被占用啦')
          callback(new Error(value + '已被占用'))
        } else {
          callback()
        }
      }
    }
    return {
      employees: [],
      // 校验规则
      formRules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 50,
            message: '部门名称要求1-50个字符',
            trigger: 'blur'
          },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 50,
            message: '部门编码要求1-50个字符',
            trigger: 'blur'
          },
          { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 300,
            message: '部门介绍要求1-300个字符',
            trigger: 'blur'
          }
        ]
      },
      form: {
        name: '', // 部门名称
        code: '', // 部门编码
        manager: '', // 部门管理者
        introduce: '' // 部门介绍
      }
    }
  },
  created() {
    this.loadEmployee()
    // 获取当前部门的详情
    this.loadDepartDetail()
  },
  methods: {
    async loadEmployee() {
      const res = await getEmployeeSimple()
      console.log(res)
      // 绑定员工信息
      this.employees = res.data
    },
    async doAdd() {
      // 1.组装参数
      const data = { ...this.form, pid: this.id }
      console.log(data)
      // 2.调用接口
      const res = await addDepartments(data)
      console.log(res)
      // 3.通知父组件,关闭弹框,并更新数据
      this.$emit('success')
    },
    async doEdit() {
      await updateDepartments(this.form)
      this.$message({ type: 'success', message: '修改成功' })
      // 抛出success事件
      this.$emit('success')
    },
    async loadDepartDetail() {
      if (this.isEdit) {
        const res = await getDepartDetail(this.id)
        console.log(res)
        this.form = res.data
      }
    },
    hSubmit() {
      // 表单验证
      this.$refs.deptForm.validate(valid => {
        if (valid) {
          // 根据 isEdit的值，决定做保存还是添加
          this.isEdit ? this.doEdit() : this.doAdd()
        }
      })
    },
    hCancel() {
      // 抛出关闭弹窗事件
      this.$emit('close')
    }
  }
}
</script>

<style>
</style>
